Whenever jealousies are expressed as to any supposed views of ours, on the dominion of the West Indies, you cannot go farther than the truth, in asserting we have none. If there be one principle more deeply rooted than any other in the mind of every American, it is, that we should have nothing to do with conquest. As to commerce, indeed, we have strong sensations. In casting our eyes over the earth, we see no instance of a nation forbidden, as we are, by foreign powers, to deal with neighbors, and obliged, with them, to carry into another hemisphere, the mutual supplies necessary to relieve mutual wants. This is not merely a question between the foreign power and our neighbor. We are interested in it equally with the latter, and nothing but moderation, at least with respect to us, can render us indifferent to its continuance. An exchange of surplusses and wants between neighbor nations, is both a right and a duty under the moral law, and measures against right should be mollified in their exercise, if it be wished to lengthen them to the greatest term possible. Circumstances sometimes require, that rights the most unquestionable should be advanced with delicacy. It would seem that the one now spoken of, would need only a mention, to be assented to by any unprejudiced mind: but with respect to America, Europeans in general, have been too long in the habit of confounding force with right. The Marquis de La Fayette stands in such a relation between the two countries, that I should think him perfectly capable of seeing what is just as to both. Perhaps on some occasion of free conversation, you might find an opportunity of impressing these truths on his mind, and that from him, they might be let out at a proper moment as matters meriting consideration and weight, when they shall be engaged in the work of forming a constitution for our neighbors. In policy, if not in justice, they should be disposed to avoid oppression, which, falling on us, as well as on their colonies, might tempt us to act together.[5]

The element of measure adopted by the National Assembly excludes, _ipso facto_, every nation on earth from a communion of measure with them; for they acknowledge themselves, that a due portion for admeasurement of a meridian crossing the forty-fifth degree of latitude, and terminating at both ends in the same level, can be found in no other country on earth but theirs. It would follow then, that other nations must trust to their admeasurement, or send persons into their country to make it themselves, not only in the first instance, but whenever afterwards they may wish to verify their measures. Instead of concurring, then, in a measure which, like the pendulum, may be found in every point of the forty-fifth degree, and through both hemispheres, and consequently in all the countries of the earth lying under that parallel, either northern or southern, they adopt one which can be found but in a single point of the northern parallel, and consequently only in one country, and that country is theirs.

The Writings of Thomas Jefferson, Volume III (of 9) — Part 171